ci(wiki): apply autostash to rebase pulling

Author: coisa

.github/workflows/wiki.yml

@@ -67,7 +67,7 @@ jobs:
           add: .
           message: "Update wiki docs"
           default_author: github_actions
-          pull: "--rebase"
+          pull: "--rebase --autostash"
           push: true
 
       - name: Commit parent repo submodule pointer
@@ -78,5 +78,5 @@ jobs:
           add: .github/wiki
           message: "Update wiki submodule pointer"
           default_author: github_actions
-          pull: "--rebase"
+          pull: "--rebase --autostash"
           push: true